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Dmitriy789 [7]
3 years ago
13

PLEASE HURRY!! combine the radicals:

Mathematics
1 answer:
Tresset [83]3 years ago
6 0

Step-by-step explanation:

The terms 9√x - 3√x have a common factor of √x.

Therefore 9√x - 3√x = √x * (9 - 3) = 6√x.

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Jenny washed dishes 4 times as many as her brother last month. Her brother washed dishes 8 times. Jenny said she could multiply
Julli [10]

Jenny is incorrect in her calculation.

For every time that Jenny's brother washed dishes, Jenny washed dishes 4 times. This tells that the the times they washed dishes occur in the ratio 4 :1. If Jenny's brother washed dishes 8 times, Jenny has to have washed dishes 4\times 8=32 times. The way Jenny's is doing the calculation implies that his brother washed dishes 3*\times 8 =24 times. He calculation yields a wrong result.

7 0
3 years ago
Help? I cannot get my head around it.
sergejj [24]

Answer:

60cm³

Step-by-step explanation:

8 0
3 years ago
Ana compró una cartera cuyo precio original es de x dólares con el 10% de descuento y un perfume con precio original de B dólare
katovenus [111]

Answer:

Tarea:

Ana compró una cartera cuyo precio es x dólares con el 10% de descuento y un perfume con precio original en dólares con un descuento del 15%. ¿Cuánto gastó Ana en total?

- Solución:

El precio estará en lenguaje algebraico, ya que no nos dan el dato de cuánto costó cada artículo.

• Hallamos el precio de la cartera con el descuento:

El precio original es x, entonces:

Regla de tres:

100 % --------> x

10 % -----------> ?

10 . x : 100 = ?

10x/100 = ?

El 10% del precio de la cartera es 10x/100.

Entonces el precio de la cartera es (x-10x/100).

• Hallamos el precio del perfume con el descuento:

El precio original es y, entonces:

Regla de tres:

100% -------> y

15 % --------> ?

15.y/100

El 15% del perfume es 15y/100.

Entonces el precio del perfume con el descuento es (y-15y/100).

Entonces lo que gastó en total es:

(x - 10x/100) + (y - 15y/100)

Step-by-step explanation:

pls give me brainless

7 0
3 years ago
Which of the following is an example of a nonterminating, nonrepeating decimal?
BARSIC [14]

Answer:

Option B. 0.578942190874654...

Step-by-step explanation:

we know that

A non-terminating, non-repeating decimal is a decimal number that continues endlessly, with no group of digits repeating endlessly

example

the number \pi= 3.1415926535...

In this problem

the number 0.578942190874654... is a non-terminating, non-repeating decimal

5 0
3 years ago
Help quickly please!!!
nadezda [96]
The value of the expression is 12
6 0
4 years ago
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